- OP Labs formerly Oxford Peptides.
- Batch HPLC tested at 99%+ purity.
- Store frozen long term or in fridge when ready to be used.
- Sold for research purposes only.
- Contact us for Wholesale Orders.
Download COA here: Semax COA.pdf
Please note if you have a different Batch ID please contact us for the latest COA.
Semax
Technical Information
Peptide Name:
Semax
Synonyms:
Met-Glu-His-Phe-Pro-Gly-Pro (MEHFPGP), ACTH(4–10) analogue
Peptide Sequence (Amino Acid):
Met–Glu–His–Phe–Pro–Gly–Pro
Molecular Formula:
C37H51N9O10S
Molecular Weight:
831.93 g/mol
CAS Number:
80714-61-0
PubChem CID:
Not listed (custom peptide; structurally related to ACTH fragments)
IUPAC Name:
L-methionyl-L-glutamyl-L-histidyl-L-phenylalanyl-L-prolylglycyl-L-proline
Structure Representation:
SMILES:
CSCCC(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](Cc1c[nH]cn1)C(=O)N[C@@H](Cc2ccccc2)C(=O)N1CCC[C@H]1C(=O)NCC(=O)N2CCC[C@H]2
Peptide Classification:
Synthetic heptapeptide; analogue of adrenocorticotropic hormone (ACTH 4–10)
Solubility:
Soluble in water, acetic acid, and most aqueous buffers (e.g., PBS)
Storage Guidelines:
– Lyophilized powder should be stored at −20°C in a dry, dark environment
– Reconstituted solutions should be stored at 2–8°C and used within several days
– Avoid repeated freeze-thaw cycles
References
- Ashmarin, I. P., Kamensky, A. A., et al. (1995). “Neuropeptide Semax: behavioural effects, mechanisms of action, and prospects for clinical use.” Neuroscience and Behavioral Physiology, 25(4), 363–368. https://doi.org/10.1007/BF02360159
- Myasoedov, N. F., et al. (2002). “Peptide Semax: its application and molecular mechanisms of action.” Biochemistry (Moscow), 67(7), 769–776. https://doi.org/10.1023/A:1019951307680
- Kolomin, T. A., et al. (2018). “Semax, an analog of ACTH(4-10), regulates expression of genes involved in neuroprotection and plasticity in the rat brain.” Frontiers in Pharmacology, 9, 233. https://doi.org/10.3389/fphar.2018.00233
- Volkova, A., et al. (2016). “Peptide Semax modifies BDNF and NGF expression in the brain of rats under stress.” Neurochemical Journal, 10(1), 56–59. https://doi.org/10.1134/S1819712416010159
Keywords: Semax.










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I have ordered multiple times since my first order, which I think says everything?
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Product is good quality customer service isn’t great
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Didn’t really notice a difference in cognitive function however didn’t pair with Selmax and don’t normally respond well with compounds that change mental function
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The effects are fairly weak may be placebo but it helps with concentration
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